Stuv 21 Installation Manual
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Stuv 21 Installation Manual

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REQUIRED TOOLS
Grinder
Hammer
Knife with
Measuring
retractable blade
tape
Level
Impact driver
STÛV 21
INSTALLATION MANUAL
Keep these instructions for future reference
REQUIRED HARDWARE
5
mm
Crowbar
5 mm
hex socket
#2
Cutting pliers
No. 2
square bit
T20
Flat screwdriver
Torx 20 bit
8
10
mm
mm
8 mm
10 mm
hex socket
hex socket
PH2
5
mm
No. 2
5 mm
phillips bit
hex bit
T25
T30
Torx 25 bit
Torx 30 bit
REQUIRED MATERIAL
Cement board
Metal framing
Floor and wall
Wood planks
finishing
Stûv handle
No. 8
Wood screws
EN
Protective fabric
or cardboard
Construction wood
Chimney kit

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Summary of Contents for Stuv 21

  • Page 1 STÛV 21 INSTALLATION MANUAL Keep these instructions for future reference REQUIRED TOOLS REQUIRED HARDWARE REQUIRED MATERIAL Grinder Hammer Crowbar 5 mm 8 mm 10 mm Cement board Metal framing Protective fabric hex socket hex socket hex socket or cardboard Knife with...
  • Page 2 THANK YOU APPENDICES This manual describes a standard installation of a Stûv 21 unit. To install a frame, a front panel, a linear grille or any other option, it is necessary to respect, when applicable, certain specificities that are outlined in the appendices provided. If the appendix is missing, contact customer service and ask for the specific instruction using the code under the icon.

  • Page 3: Table Of Contents

    3.2 Double face 3.3 R value Masonry Chimney 3.4 Floor protection 3.5 Framework characteristics 3.6 Non-combustible material Air Supply 3.8 Fitted television 3.9 Shelf made of combustible material 3.10 Hearth extension 3.11 Corner installation 3.12 Risk area 3.13 Example installation STÛV 21...

  • Page 4: Certification

    CERTIFICATION SAFETY INSTRUCTIONS ........................5 TECHNICAL SPECIFICATIONS ......................6 MARKING LABELS ..........................7...

  • Page 5: Safety Instructions

    Canada, and by the National Fireplace Institute the hearth. You will find all the information you need to register in the United States. your product. STÛV 21 CERTIFICATION...

  • Page 6: Technical Specifications

    (minimum three times during the heating such as naphtha and motor oil, paper, exceed the single burn rate of this unit the unit’s glass face. season). TECHNICAL SPECIFICATIONS SIMPLE FACE 21-85 SF 21-95 SF 21-105 SF 21-125 SF DOUBLE FACE 21-85 DF 21-95 DF...

  • Page 7: Marking Labels

    DO NOT REMOVE THIS LABEL / NE PAS RETIRER CETTE ÉTIQUETTE MADE IN BELGIUM / FABRIQUÉ EN BELGIQUE PW9310303200_R6 * models 21.65H-SF & 21.75-SF may not be sold or operated within the United States MODELS/MODÈLES: STÛV CERTIFIED AND CONFORMS TO : Clearance to combustible materials using the Stûv insulated shell /...

  • Page 8: Components

    COMPONENTS LIST OF COMPONENTS ........................ 9 CONVECTION KIT ........................12 OPTIONAL KITS .......................... 13...

  • Page 9: List Of Components

    LIST OF COMPONENTS SIMPLE FACE (SF) DOUBLE FACE (DF) See table for code and description See table for code and description Option Option STÛV 21 COMPONENTS...
  • Page 10 LIST OF COMPONENTS 21-85 SF 21-95 SF FW1002102300 FW1002102700 PRODUCT INCLUDED PRODUCT INCLUDED DESCRIPTION DESCRIPTION CODE OR OPTION CODE OR OPTION Fireplace Included Fireplace Included Insulated shell Included Insulated shell Included Hearth finishing trims Included Hearth finishing trims Included Horizontal finishing trims...
  • Page 11 LIST OF COMPONENTS 21-85 DF 21-95 DF 21-85 DF 21-95 DF FW1002103000 FW1002103000 FW1002103100 FW1002103100 PRODUCT INCLUDED PRODUCT INCLUDED DESCRIPTION DESCRIPTION CODE OR OPTION CODE OR OPTION Fireplace Included Fireplace Included Insulated shell Included Insulated shell Included Hearth finishing trims...

  • Page 12: Convection Kit

    H : 3'' H : 20'' H : 10' H : 10' 12 1/8" Ø 6" GRILLE To be fixed on the grille boxes Installation p.39 28 in 11" 3/4" GRILLE PV1200200006 5 7/8" 4 3/4" 3/16" 9 3/4" STÛV 21 COMPONENTS...

  • Page 13: Optional Kits

    Ø4" Ø 4" 21-85 23 3/4" 21-95 27 5/8" 21-105 29 5/8" 21-125 37 1/2" It is recommended for 21-95 DF et 21-125 DF models to use a ø6" outside air kit (not provided by Stûv America) STÛV 21 COMPONENTS...

  • Page 14: Dimensions

    NON COMBUSTIBLE MATERIAL ....................18 AIR SUPPLY ..........................19 FITTED TELEVISION ........................19 CORNER INSTALLATION ......................20 3.10 HEARTH EXTENSION ........................ 20 3.11 SHELF MADE OF COMBUSTIBLE MATERIAL ................. 21 3.12 RISK AREA ........................... 23 3.13 INSTALLATION EXAMPLE ......................23...

  • Page 15: Simple Face

    4 / " 1/4" FRONT VIEW VIEW 21-85 SF 21-85 SF 40" 59 1/8" 51 3/4" 30 3/4" 23 3/4" 26 1/2" 21 1/16" 25 1/2" 7 1/16" 7" 19 7/8" 7 1/4" 25 1/8" 10 1/2" Ø 8" 21-95 SF 21-95 SF 43 7/8"...

  • Page 16: Double Face

    29 / " 17" ø 6 1/4" ø i 3 3/4" 5 / " 4 / " FRONT VIEW VIEW 21-85 DF 21-85 DF 39 3/4" 59 1/8" 51 3/4" 30 3/4" 23 3/4" 26 1/2" 21 1/16" 32 1/8" 10"...

  • Page 17: R Value

    R VALUE FLOOR PROTECTION For the Stûv 21, there is no R Value to be considered when installing floor finishing In order to be compliant with building codes floor protection is mandatory. The materials. All materials installed under and in front of the fireplace must be non surface of the floor in front of the unit must be protected by non combustible floor protection (tile, plate, slab..) .

  • Page 18: Framework Characteristics

    2 x cement min. board 1/2'' * From the bottom of the unit Without the adjustable stand 6 ½" min.* MODEL 21-85 SF 40" 25 5/8" 59 1/8" NOTE D min. 21-95 SF 43 7/8" 27 3/4" 63 1/2" Installing two 1/2" cement board 21-105 SF 47 7/8"...

  • Page 19: Air Supply

    The room air inlet for convection hot air outlet, as air could get trapped cannot be higher than the from the side of the fireplace in the behind it creating a heat trap. bottom of the glass. centre of the air grilles. STÛV 21 DIMENSIONS...

  • Page 20: Corner Installation

    For the hot air output we recommend using the top back outlets. For all questions concerning a non-standard installation, contact Stûv America customer service. STÛV 21 DIMENSIONS...

  • Page 21: Fitted Television

    (e.g. a frame/poster) on the This configuration is at the user's discretion. wall above the fireplace. This can trap heat radiation and may lead Stûv America does not recommend this installation to a major fire event. and disclaims all responsibility. STÛV 21 DIMENSIONS...

  • Page 22: Hearth Extension

    The adjustable stand and the two layers of cement board panel under the fireplace are mandatory for this type of installation. It is possible to Install the Stûv 21 in a corner. The dimensions listed below must be followed to build the framing.

  • Page 23: Risk Area

    4" 12" Risk area 4" 4" 6" 45° 45° 21 1/8" 2" 48” l o g s t o r a g CAUTION - FIRE HAZARD To avoid major damage, no combustible material should be placed in front of a hot air outlet. In addition, blocking it may cause the unit to overheat and, in some cases, lead to a fire.

  • Page 24: Installation

    INSTALLATION UNPACKING ..........................25 OPTION: ADJUSTABLE STANDS ................... 27 OPTION: AIRTIGHT BOX ......................29 CONVECTION KIT ........................31 GLASS CAVITY AND PULLEYS ....................32 PREPARING FOR CONVECTION ....................34 WALL INSERTION ........................38 CONVECTION INSTALLATION ....................39 REFRACTORY BRICKS ......................41 4.10 BAFFLES AND VERMICULITES ....................

  • Page 25: Unpacking

    Spray paint for touch-ups Hardware bag Fireplace handle Stûv glove *For 105 and 125 only 4x Refractory tightening clip* 2x Corner refractory bracket* Refractory bricks 2x Baffle supports 10. Vermiculites 11. Baffle crosspiece (2x for DF models) STÛV 21 INSTALLATION...
  • Page 26 Step 8 Once the handles are in place, remove the insulated shell backwards by lifting it up slightly. NOTE The door is locked in half-closed position. To avoid any problem, do not unlock the door at this point. STÛV 21 INSTALLATION...

  • Page 27: Option: Adjustable Stands

    Step 10 Identify the direction of the stands. Unscrew the feet by 3/4’’ to level the fireplace in both directions when it is in its final position. Front Rear 23 1/2" 3/4’’ 10 3/4 " ±3/4 " STÛV 21 INSTALLATION...
  • Page 28 Step 15 Using a flathead screwdriver, remove the four access squares for the adjustable stands. Step 16 Using a hammer, insert the adjustable stands into the access squares you just cleared. STÛV 21 INSTALLATION...

  • Page 29: Option: Airtight Box

    2.2 (recommended) Use the outside air connection kit to connect the outside air to the airtight box. It is recommended to Ø6" make a loop in the wall with the duct to Ø6" Ø4" or Ø6" Ø4" avoid condensation. Ø4" STÛV 21 INSTALLATION...
  • Page 30 It is recommended to have a 6" outside air inlet for 21-95 DF and 21-125 DF models. 4’’ Step 21 Position the airtight box in its correct location under the fireplace.

  • Page 31: Convection Kit

    4x Maxclip 4x Gear clamp 12x Self-drilling screw Anchor plate Right support Left support 3 x2 5 x4 10. 4x Self-drilling screw 6 x12 The installation of the SF5 SF6 front panel is explained in the appendix (9310400005). STÛV 21 INSTALLATION...

  • Page 32: Glass Cavity And Pulleys

    Step 27 Using a 10 mm socket or Torx T30 bit, remove the screws that secure the glass cavity. Step 28 Temporarily remove the glass cavity OR on some models, remove the stop plate attached to the fireplace. STÛV 21 INSTALLATION...
  • Page 33 In case of problems, refer to the illustration above to replace the pulley cable back into it’s place. Step 33 Put the lifter OR the stop plate back in place using the previously removed M6 screws. STÛV 21 INSTALLATION...

  • Page 34: Preparing For Convection

    Step 37 Using a hammer, remove the pre- cut pieces of the top rear openings of the fireplace. Step 38 Connect a Ø6'' x 20'' long flange to both upper rear exit of the fireplace using the maxclip and self-drilling hex head screws. STÛV 21 INSTALLATION...
  • Page 35 Step 41 Cut the wool using a utility knife and save cut-offs for future use. Step 42 Connect a Ø6'' x 3'' short flange to the opening with the maxclip and the self-drilling hex head screws on both sides. STÛV 21 INSTALLATION...
  • Page 36 1 3/8’’ between the shell and the fireplace. Step 47 Replace the finishing trims except for the top one. Check if some should be omitted in the case of frame or front panel installation. STÛV 21 INSTALLATION...
  • Page 37 Step 51 Cut the two layers of wool as to match the metal plate holes. Step 52 Replace the wool support plate and the two layers of wool around the convection flanges. STÛV 21 INSTALLATION...

  • Page 38: Wall Insertion

    4" cement board contour. Step 57 Open the box with the components for the convection and separate hot and cold air components to make installation easier. STÛV 21 INSTALLATION...

  • Page 39: Convection Installation

    Install the air ducts on the sides or at the back of the fireplace using a hose clamp. Fill the empty space around the ducts with the previously cut scraps TIPS To ease the assembly with the hose clamp, roll back the insulation. STÛV 21 INSTALLATION...
  • Page 40 Step 63 Without the adjustable stands, legs cans be adjusted at the four corners inside the combustion chamber. Use a 5 mm Allen wrench or a screwdriver with a 5 mm hex bit to make the adjustment. STÛV 21 INSTALLATION...

  • Page 41: Refractory Bricks

    PW5010100300 (179 x 354 mm) x3 (190 x 308 mm) (144 x 304 mm) NOTE For 21-105 SF and 21-125 SF only, if the refractory bricks on the back seem unstable follow the steps on the next page for installation of the tightening refractory brackets.
  • Page 42 REFRACTORY BRICKS NOTE Refractory brackets and tightening clips are only provided for the 21- 105 SF and 21-125 SF models. These should only be installed if the back refactory bricks are not tight enough. Step 67 Raise the glass to access the inside of the combustion chamber in order to install refractory bricks 1 and 2.

  • Page 43: Baffles And Vermiculites

    Step 78 Place all vermiculites. If there are three vermiculites, finish with the centre one. MODEL VERMICULITES PW5010203100 x2 21-85 SF (278mm X 315mm) PW5010203300 x2 21-95 SF (369mm X 307mm) PW5010200008 x3 21-105 SF...
  • Page 44 Step 84 Place all vermiculites. If there are three vermiculites, finish with the centre one. MODEL VERMICULITES PW5010203000 x4 21-85 DF (315mm X 105mm) PW5010203200 x4 21-95 DF (366mm X 166mm) PW5010202200 x6 21-125 DF (345mm X 112mm) STÛV 21...

  • Page 45: Finishing Without A Front Panel

    Step 89 Place finishing angle bars (not included) around the opening of your finished wall to obtain straight angles. Step 90 Protect the glass and fireplace paint, then proceed to drywall finishing and desired wall finish using non-combustible materials. STÛV 21 INSTALLATION...

  • Page 46: Recap

    7. Level the fireplace and place 8. Connect the chimney and 9. Install the frame, the 10. Finish the wall. Erect the frame and validate the compliance of the the inner protection. the convection system. drywall and the combustible materials cement board. STÛV 21 INSTALLATION...

  • Page 47: Chimney

    CHIMNEY DIMENSIONS AND CERTIFICATION ..................48 INSTALLATION TYPE ........................ 49 MASONRY CHIMNEY ........................50...

  • Page 48: Dimensions And Certification

    (C) the bottom of the the opening. Anchor plate MODEL Ø int. Ø ext.† MODEL Ø int. Ø ext. † MODEL 21-85 SF 21-85 DF 8" 10" to 12" 10" 12" to 14" 21-85 59 1/8" 51 3/4" 21-95 SF 10"...

  • Page 49: Typical Installation

    1' Insulated after the angle. Step 8 Install and secure the rain cap to beyond the roof line. chimney section the top of the chimney. Anchor plate STÛV 21 CHIMNEY...

  • Page 50: Masonry Chimney

    • If major repairs are required to meet while connecting the chimney to the the above mentioned points, a new masonry chimney adapter. masonry chimney will have to be built. Observe clearances according to NBC or NFPA 211 STÛV 21 CHIMNEY...

  • Page 51: Use

    WOOD SELECTION ........................52 DO NOT USE ..........................53 FIRESCREEN ..........................53 STARTING THE FIRE ........................54 RELOADING THE FIRE ........................ 55 ASH REMOVAL ........................... 55...

  • Page 52: Wood Selection

    They produce beautiful flames and plenty of embers that glow for • Fruit tree wood: walnut, cherry, pear, apple, olive a long time. • Softwood: poplar, birch, linden., locust, chestnut • Resinous wood: maritime pine, spruce, Scots pine, fir, larch STÛV 21...

  • Page 53: Do Not Use

    STÛV 21...

  • Page 54: Starting The Fire

    Step 4 Leave the glass door ajar by about 1" for a minimum of 20 minutes. This 20 minutes helps create a better draft when starting the fire and prevents smoke condensation and soot deposits. STÛV 21...

  • Page 55: Reloading The Fire

    Before they can be disposed of, ashes should be kept in a non combustible start the next fire. bucket with a tight lid until they have cooled completely. Remove the ashes regularly. Burning ashes can damage the lower glass door seal. This deterioration is not covered by the warranty. STÛV 21...

  • Page 56: Maintenance

    MAINTENANCE REGULAR MAINTENANCE ......................57 ANNUAL MAINTENANCE ......................57 CREOSOTE AND CHIMNEY-SWEEPING .................. 59 PULLEYS AND COUNTERWEIGHTS ..................59 COMPONENTS REPLACEMENT ....................60...

  • Page 57: Regular Maintenance

    Step 3 Check the condition of the woven seal around the door perimeter and the lower silicone seal. Contact a Stûv dealer in case of damage to the seals. STÛV 21 ENTRETIEN...
  • Page 58 2 counterweight cables on the sliding parts. Step 9 Slide the glass pane ± 4 cm and wipe the magnets with a cloth to remove any metal residue that may have stuck to them. STÛV 21 ENTRETIEN...

  • Page 59: Creosote And Chimney-Sweeping

    Creosote is a thick, black, brittle or Before carrying complete The Stûv 21 range of fireplaces is equipped with a guillotine door that works with a smooth (vitrified) residue resulting from sweeping, Stûv recommends using system of pulleys and counterweights. The basic principle is quite simple: incomplete combustion of wood.

  • Page 60: Components Replacement

    You will be able to lift the seal and rod out from those hooks. Step 6 Going from front to back remove the seal from the frame, starting from the extremities slide it off the underwire. STÛV 21 ENTRETIEN...
  • Page 61 Fold the pointed flap onto the seal by using a flathead screwdriver. Make sure the point enters well into the seal. Proceed to reassemble (explained at the end of the chapter) STÛV 21 ENTRETIEN...
  • Page 62 Step 14 Close the door and remove the damper panel cover. Step 15 Using the fireplace handle remove the keys freeing the innersprings. Put them on the left and right side. Step 16 Unscrew and remove the glass pane. STÛV 21 ENTRETIEN...
  • Page 63 Step 18 Using a Torx 20 bit remove 2 screws from each side. Step 19 Remove the sliding door. Step 20 Move the center rail of the slide to access the four screws, then unscrew. Step 21 Remove the (damaged) slide. STÛV 21 ENTRETIEN...
  • Page 64 Step 25 Attach the counterweight cables to the glass door. CAUTION Careful not to let these cables go when reattaching. Step 26 Close the door and put back the innersprings, put back the nut. Step 27 Put back the damper cover panel. STÛV 21 ENTRETIEN...

  • Page 65: Warranty

    WARRANTY WARRANTY DETAILS ........................ 66 WARRANTY FORM ........................67...

  • Page 66: Warranty Details

    Howe ver, as a user, you also have an important role to play in getting the satisfaction • having the chimney swept regularly (once per heating season, for regular use) you expect from your Stûv. to ensure optimal operation and maximum safety. STÛV 21 WARRANTY...

  • Page 67: Warranty Form

    PLEASE FILL OUT THIS FORM AND SEND IT TO US VIA: Our website: stuvamerica.com Stûv America Inc. Email : info@stuvamerica.com On the Warranty and Product Registration page 34, Boulevard de l’ A éroport Tel.: +1 -866-487-7888 Bromont Quebec J2L 1S6 Canada Fax: +1 -514-528-9538 STÛV 21 WARRANTY...
  • Page 68 Stûv fireplaces are designed and manufactured by : Stûv sa – Belgique stuv.com Rue Jules Borbouse n°4 B-5170 Bois-de-Villers And distributed in North America by : Stûv America inc. – Canada stuvamerica.com 34, Boulevard de l’ A éroport Bromont Qc Canada J2L 1S6...

This manual is also suitable for:

21-85 sf21-95 sf21-105 sf21-125 sf21-75 df21-85 df ... Show all

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